EP0560818A1 - Device in a power plant. - Google Patents
Device in a power plant.Info
- Publication number
- EP0560818A1 EP0560818A1 EP91920661A EP91920661A EP0560818A1 EP 0560818 A1 EP0560818 A1 EP 0560818A1 EP 91920661 A EP91920661 A EP 91920661A EP 91920661 A EP91920661 A EP 91920661A EP 0560818 A1 EP0560818 A1 EP 0560818A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- compressor
- combustion
- combustor
- generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 18
- 239000000567 combustion gas Substances 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000002309 gasification Methods 0.000 abstract 2
- 239000007858 starting material Substances 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/264—Ignition
Definitions
- the present invention relates to a device in a power plant comprising a combustion chamber for combustion of a fuel at overpressure, a turbine driven by generated combustion gases, a compressor driven by the turbine for compression of combustion air, a generator driven by the gas turbine, as well as a gas conduit for transferring combustion gases from the combustion chamber to the turbine.
- a plant of the above-mentioned type is described in Swedish patent specification 8700960-1 (456 757; corresponding to EP 881012041 (0 285 825) and US 4 860 535) .
- the plant is started by the generator therein being switched to a motor, which accelerates the gas turbine of the plant to full, synchronous speed. This requires energy from the network, and this limits the applicability to relatively small plants, for example with a gas turbine power of 15-17 MW.
- the present invention aims to provide a solution to the above-mentioned and similar problems and it is characterized in that the device in a power plant includes at least one start-up combustor and in that the generator can be switched to motor operation with a relatively low power, of the order of magnitude of 5-10 % of the generator power, for rotation of the compressor upon start-up, the compressor supplying combustion air to the start-up combustor, and that fuel, for example oil, is transferred to the start-up combustor and burnt, the start-up combustor in turn delivering gases to the turbine, the turbine power thus being supplied to the compressor.
- the device in a power plant includes at least one start-up combustor and in that the generator can be switched to motor operation with a relatively low power, of the order of magnitude of 5-10 % of the generator power, for rotation of the compressor upon start-up, the compressor supplying combustion air to the start-up combustor, and that fuel, for example oil, is transferred to the start-up combustor and
- Figure 1 shows parts of the power plant with a start-up combustor
- Figure 2 is a view of the gas turbine with a generator.
- Figure 2 shows a gas turbine unit according to the inven- tion, comprising a turbine' 11, a compressor 12 and a gene ⁇ rator 13 which may also serve as a starting motor.
- the gas outlet 14 from the turbine 11 is connected through a conduit to a waste heat boiler (not shown) , in which the residual heat in the gases leaving the turbine 11 is utilized.
- the combustion gases from a boiler are passed in a conduit 15 to the turbine 11 (see arrow F in Figure 1) , which drives the compressor 12 and the generator 13 ( Figure 2) .
- Air compressed in the compressor 12 is passed in the conduit 16 to the boiler.
- the valve unit includes cut-off valves 17 and 20 which are operated by operating devices (see below) .
- the conduit 16 includes at least one by-pass (short-circuit) valve 18 and at least one air valve 21 (see below) .
- valve unit is meant the unit between the flange A and the flange B in Figure 1.
- Figure 1 shows, besides the combustion gas conduit 15 and the air conduit 16, cut-off valves 17 for the compressor air, in this case of butterfly type, for switching on and off the air from the compressor 12 to the boiler, the cut- off valves being suitably operated by operating (servo) devices (not shown) .
- the by-pass valve 18 is intended to conduct the compressor air directly to the turbine.
- the valve 21 controls the air supply to the start-up combustor 19 upon start-up.
- the start-up combustor 19 which may be one or more in number (see also Fig. 2 where a plurality, for example six, are arranged radially with respect to the gas conduit 15) , is arranged at the combustion gas conduit 15 or at a separate location (not shown) . It is supplied with air from the compressor when the valve 21 is in the shown position, and fuel, for example oil, is also supplied to the start-up combustor 19.
- the starting cycle is initiated by passing combustion air via the open valve 21 to the start-up combustor 19, to which also oil, for example, is supplied and ignited.
- the start-up combustor 19 delivers combustion gases to the turbine 11, whereby power from the turbine is supplied to the compressor 12, and the compressor in turn delivers an increasing quantity of air to the start-up combustor, which supplies an increasing quantity of hot gas to the turbine.
- the gas turbine can accelerate until it reaches idling speed and later on synchronous speed.
- pressurization and heating of the pressure vessel of the total plant can be performed by successively opening the valves 17 and 20.
- the invention can be varied in many ways within the scope of the following claims.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
L'invention se rapporte à un dispositif situé dans une installation génératrice de puissance et comprenant une chambre de combustion surpressurisée, servant à la combustion d'un combustible, une turbine (11) actionnée par les gaz de combustion produits par la chambre de combustion, un compresseur (12) actionné par la turbine pour comprimer l'air de combustion et un conduit de gaz (15) servant à transférer les gaz de combustion de la chambre de combustion à la turbine. La turbine à gaz actionne le générateur (13). Le dispositif décrit par l'invention, comprend au moins un brûleur de démarrage à deux étapes de gazéification (19). Le générateur (13) peut se commuter en fonctionnement moteur pour faire tourner le compresseur (12) au démarrage et, de ce fait, le compresseur alimente le(s) brûleur(s) de démarrage à deux étapes de gazéification, en air de combustion. Le combustible, par exemple du pétrole, est transféré au brûleur de démarrage (19) qui, à son tour, alimente la turbine (11) en gaz, la puissance de la turbine étant alors transmise au compresseur (12).The invention relates to a device located in a power generating installation and comprising an overpressurized combustion chamber, serving for the combustion of a fuel, a turbine (11) actuated by the combustion gases produced by the combustion chamber, a compressor (12) operated by the turbine for compressing the combustion air; and a gas conduit (15) for transferring the combustion gases from the combustion chamber to the turbine. The gas turbine drives the generator (13). The device described by the invention comprises at least one starter burner with two gasification stages (19). The generator (13) can be switched to engine operation to run the compressor (12) on start-up and, thereby, the compressor supplies the two-stage gasification start-up burner (s) with combustion air . The fuel, eg petroleum, is transferred to the starter burner (19) which in turn supplies the turbine (11) with gas, the power of the turbine then being transmitted to the compressor (12).
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9003866A SE467590B (en) | 1990-12-05 | 1990-12-05 | STARTING EQUIPMENT FOR POWER PLANT |
SE9003866 | 1990-12-05 | ||
PCT/SE1991/000827 WO1992010655A1 (en) | 1990-12-05 | 1991-12-04 | Device in a power plant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0560818A1 true EP0560818A1 (en) | 1993-09-22 |
EP0560818B1 EP0560818B1 (en) | 1995-08-23 |
Family
ID=20381097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91920661A Expired - Lifetime EP0560818B1 (en) | 1990-12-05 | 1991-12-04 | Device in a power plant |
Country Status (9)
Country | Link |
---|---|
US (1) | US5331804A (en) |
EP (1) | EP0560818B1 (en) |
JP (1) | JPH06503140A (en) |
DE (1) | DE69112422T2 (en) |
DK (1) | DK0560818T3 (en) |
ES (1) | ES2080344T3 (en) |
FI (1) | FI932556A (en) |
SE (1) | SE467590B (en) |
WO (1) | WO1992010655A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2227666A (en) * | 1936-12-10 | 1941-01-07 | Bbc Brown Boveri & Cie | Starting up system for heat producing and consuming plants |
US3093968A (en) * | 1960-05-05 | 1963-06-18 | Cornell Aeronautical Labor Inc | Method and apparatus for augmenting the drive of a gas turbine |
US4161102A (en) * | 1977-10-05 | 1979-07-17 | Teledyne Industries, Inc. | Turbine engine starting system |
SE416224B (en) * | 1978-04-11 | 1980-12-08 | Stal Laval Turbin Ab | GASTURBINANLEGGNING |
GB2018964B (en) * | 1978-04-13 | 1982-10-06 | Ici Ltd | Process start-up |
US4600414A (en) * | 1982-10-13 | 1986-07-15 | Solar Turbines Incorporated | Apparatus for removing contaminants from heated gases |
US4947641A (en) * | 1988-06-23 | 1990-08-14 | Sundstrand Corporation | Pulse accelerating turbine |
-
1990
- 1990-12-05 SE SE9003866A patent/SE467590B/en not_active IP Right Cessation
-
1991
- 1991-12-04 DK DK91920661.5T patent/DK0560818T3/en active
- 1991-12-04 ES ES91920661T patent/ES2080344T3/en not_active Expired - Lifetime
- 1991-12-04 EP EP91920661A patent/EP0560818B1/en not_active Expired - Lifetime
- 1991-12-04 WO PCT/SE1991/000827 patent/WO1992010655A1/en active IP Right Grant
- 1991-12-04 DE DE69112422T patent/DE69112422T2/en not_active Expired - Lifetime
- 1991-12-04 JP JP4500123A patent/JPH06503140A/en active Pending
- 1991-12-04 US US08/066,112 patent/US5331804A/en not_active Expired - Fee Related
-
1993
- 1993-06-04 FI FI932556A patent/FI932556A/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9210655A1 * |
Also Published As
Publication number | Publication date |
---|---|
SE467590B (en) | 1992-08-10 |
ES2080344T3 (en) | 1996-02-01 |
DE69112422T2 (en) | 1996-04-25 |
SE9003866L (en) | 1992-06-06 |
FI932556A0 (en) | 1993-06-04 |
WO1992010655A1 (en) | 1992-06-25 |
US5331804A (en) | 1994-07-26 |
EP0560818B1 (en) | 1995-08-23 |
DK0560818T3 (en) | 1995-12-04 |
FI932556A (en) | 1993-06-04 |
DE69112422D1 (en) | 1995-09-28 |
JPH06503140A (en) | 1994-04-07 |
SE9003866D0 (en) | 1990-12-05 |
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